Paper feeding mechanism



PAPER FEEDING MECHANISM Fild April 30. 1934 5 Sheets-Sheet l FIG.-1

INVENTOR Joli/V VHA/ EUR! ATTORNEYS y}; 1935- J. VAN BUREN 2,006,702 PgPER FEEDING MECHANISM Filed April 30. 1934 3 she ts-sheet 2 v INVENTOR JOH/v VswBuzav ATTORNEYS July 2, 1935- J. VAN BUREN PAPER FEEDING MECHANISM Filed April 50. 1954 s Sheet-Sheet 5 INVENTOR Jail/V [071V BUEE/V BY Mm an ma ATTORNEYS.

- I Another obje ct or Patented July12, .35

UNITEDTSTATES 2,006,702 frarnn FEEDING MECHANISM John Van Buren, Brooklyn, N. Y.

Application Apr-i130, 1934, Serial No. vz'a'oie x v '1 Claims. This invention relates paper feeding mechanism..

More particularly stated, the invention relates to mechanism for feeding paper to wrapping machines. when printed wrappers are fed from a strip, and are cut and fed to wrapping, mechanism it is very important that the feed be accurate in order that the printed matter shall be correctly positioned on the wrapped articl This invention has for provide practical and efficient/feeding mechanism so constructed and arranged'as to accurately guide, feed and cut a strip of wrapping material.

strip feeding and cutting mechanism so arranged as to accurately position the strip and the printed matter thereon with reference to the wrapping mechanism. 1

Furthenobiects of the invention will appear from the following specification taken in connection with the drawings which form a part of this application, and in-which Fig. 1 is a top plan view of a machine constructed in accordance with the invention;

Fig. 2 is a longitudinal sectional elevation of the machine. shown inFls. 1:

Fig. 3 is a detail sectional elevation somewhat diagrammatic showing the paper feeding and guiding means;

Fig. 4 is-a view similar to Fig. 3 but showing the feed rolls in different positions from those shown in Fig. 3; and

35 Fig. 5 is a top plan view of the strip fed by the feeding and guiding mechanism. The invention briefly described consists of paper feeding and guiding mechanism comprising feeding members having a plurality of spaced pins arranged to enter correspondingly spaced perforations in the strlpand meansifor guiding the strip into proper relation to the feeding pins sothat the pins and perforations'will register andthe paper will be accurately positioned during its feeding In the particular form, of the invention illustrated the strip or web of paper is fed from the of feed rolls and from the rolls means preferably positioned and below the path of movement of the strip by positioned, as above stated.

Further details of the invention will appear from the following description. 55 In the particular embodiment of the invention the form of a rollR from which its salient object to the invention is to provide is carried by arms 'cuate sector 28 having movement through the machine.

'45. which rests means of which the strip is accurately' slots through which the pins travel.

illustrated in the drawings the machine comprises-feedin g din and cuttin m hanism which supported on a pair of side frame members II and i2. The web of paper is supplied in the web W is 5 withdrawn by means of a pair of feed rolls l3 and II. The roll l3, as shown particularly in Figs. 3 and 4 is provided'with a flat portion Ii in its periphery and when this portion is opposite the roll I4, as shown in Fig. 4, no feedin n movement takes place.

The web of paper from the feed rolls I3 and f 4 to means whereby-it is positioned-with absolute accuracy, this being particularly important when printed matter appears on the web. This is accomplished in the present machine by means of a pair ofparallel feed chains 20 and 2| which are led around sprockets 22 and 23 and also around achsin tightener sprocket 24. sprocket 24 is provided for each sprockets be mounted on a spindle 25 which 26 mounted on a shaft 21. The arms 26 also have connected thereto an era slot 29 which receives a bolt for holding the sector and arms in the de- 25 sired position of adjustment.

The chains 20 and 2| are provided with spaced ins 30 which are arranged to enter correspondingly spaced perforations. 3| in the paper web W.

In order to 'de'the paper web into properly 30 alined position relative to the pins 38 a plate or supporting table is mounted on the side frames and extends across the top of the machine between the frames, this plate or table having longitudinal slots 38 and 31 for receiving the chains 5 20 and 2|. i

The plate 35 is provided with raised portions 38 and 39 at the ends thereof tends to a position adjacent the meeting portions 40 of the feed rolls I3 and I4. At the other end a flat end portion 40' extends beyond. the raised portion, to a position adjacent the meeting portions of a pair of delivery rolls 4 i and 42. The delivery roll 4| is flattened at 43 in a manner similar to the flat portion ii of the feed roll ll. The path of travel. of the paper weh between the feeding and delivery rolls is furthermore determined and guided by means of an upper plate on the web above the and is provided with correspondingly positioned The receiving end of plate 45 extends upwardly at an incline, as shown at 46. This machine was designed particularly for feedi g relatively thin 55 chain, these 20 plate 35 I ,the severed strip without the eoaction terference with theweb the tween the plates is and ll.

shafts of rolls 2 -91! roll.

as above stated by the pins 2|. 'l'he'pinswillremainpcsitione'din turestlofthewebwuntiltheypas the Sprocket Y23 and by means of the pinsthe web will beaccln'atelyipositioned movement. During webwill I or infrom rolls II and 42 at this From the rolls tween guiding members I and feed rolls II and It by which the severed strips are fed to the wrapping m...

The feed rolls above the followingmanner: A motor I! is connected by achainiltodriveasprock'etwheelllmoimted on a shaft II. This shaft-has alsomounted n a gear-ll which meshes with gear; II and 2 which are molmted respectively on the gear I carried by the I. llmesheswithagearll'ontheshaft of feed roll ll.

A tension device" provides a friction brake on the rotation ofthe supply roll R, thus maintainingthe web taut asitiswithdrawn fromthesupi3 and I withdraw the web rolland feed liveryrolls 4i and 42. As shown in Pig. 3, web when fed by the feed rolls i8 and I4 buckles slightly, as shown at 41 in Fig. 3,

these rolls reach the position. shown 41 flattens out due .to the tension on upp roll R. i

. positioned II and during its feeding movement by the feeding chains and pins The web is fed and is .being cut by Media u. and I? a; mbetween a pair of sheet material material and that the material will be pomtively and definitely located at all times during the feeding movement thereof,'and furthermore that the web will be properly severed with-reference to the printed matter thereon.

Although one specific embodiment of the invention has been it will be understood that pable of modification and that changes-in the construction and in the arrangement of the various cooperatins parting from the spirit or as expressed in the following claims.

What I claim is; 1. Means for feeding sheet material comprising parallel feeding chains mounted for movement in a horizontal plane tofeed a strip of material and havinga plurality of spaced pins spaced perforations in the material beingefed, means for feeding the strip to said feeding chains, and means positioned above the path of movement of the web and between said feeding means and said chains for guiding the material into correct feeding relation to said pins, said guiding means comprising means above the paths of movement of the pins until the chains aredisposed in the horizontal feeding plane and'means for guiding the strip downand pins. 2.Meansforfeeding andguidlngastrip sheet material comprising parallel feeding chains movable upwardly to-a horizontal feeding plane, horizon ally in said plane and downwardly away from said plane having a plurality of spaced pins arranged to enter correspondingly-spaced perforations in the material being fed, means for feeding the strip to saidfeeding chains, and

means having slots for receiving the pins and located between ing relation to said pins. said gui ing means ing constructed and arranged to guide the stripe tiltheehainsandpinsaredisposedinthehorizontal feeding plane.

3. Means for feeding y It which extends laterally from the particularly shown and described the invention is cascope of the invention.

and guiding a strip of arranged to entercorrespondingly for guiding the strip above the paths of movement of the pins unand pins are traveling in the lam-1mm feeding "is plane, and a second plate arraugedto rest on the sheet as it is being fed by the pins, said lower plate extending to a position adjacent the interengaging portions of the feed rolls and said upper plate being inclined upwardly at the receiving end of the lower plate.

4. Means for feeding and guiding a strip of sheet material comprising strip feeding means, a pair of endless feeding members for receiving the strip from thestrip feeding means, said members having spaced pins arranged to register with and be positioned in corresponding spaced perforations in the sheet being fed, spaced supporting means for supporting said endless feeding members for travel in a substantially horizontal plane, a plate for supporting the sheet as it is fed by the pins, said plate having elevated portions above said supporting means to guide the strip above said means, and a second plate arranged to rest on the sheet as it is being fed by the pins, said second plate having a downwardly inclined portion at the receiving end of the endless feeding members to guide the strip into engagement with the pins.

5. In a machine of the character described, a pair of feed rolls, a pair of delivery rolls, a supporting plate between said pairs of rolls, a pair of endless feeding members having spaced pins arranged to enter correspondingly spaced aper-' tures in a web of material being fed and to feed the web across said plate, the contacting portions of the feed rolls and of the delivery rolls and said plate between said sets of rolls being disposed substantially in the same plane and strip guiding means between the feed rolls and the supporting plate for elevating the strip above said plate.

6. In a machine of the character described, a

pair of feed rolls, one of said feed rolls having a flattened portion spaced from the other feed roll when disposed opposite thereto, a pair of delivery rolls, a substantially horizontal supporting plate between said pairs of rolls, a pair of endless feeding members having spaced pins arranged to enter correspondingly spaced apertures in a web of material being fed and to feed the web across said plate, means between the feed rolls and endless feeding members for elevating the strip above the plane of the feeding members and plate and means adjacent the horizontal path of the members for guiding the strip into engagement therewith.

7. In a machine of the character described, a pair of feed rolls, a pair of delivery. rolls, a supporting plate between said pairs of rolls, a pair of endless feeding members having spaced pins arranged to enter correspondingly spaced-apertures in a web of material being fed and to feed the web across said plate, the contacting portions of the feed rolls and of the delivery rolls and said plate between said sets of rolls being disposed substantially in the same plane, strip guiding means between the feed rolls and the supporting plate for elevating the strip above said plane, and means above the strip for guiding the strip downwardly to the plane of the supporting plate.

JOHN VAN BUREN. 

